Heating and purifying feed-water



4.Sheets-Sheet l.

W. BARAGWANATH.

HEATING AND PURIFYINGY FEED WATER. No. 314,559.

(No Model.)

Patented Mar. 31, 1885.

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(No Model.) 4 Sheets-Sheet 2.

W. BARAGWANATH.

HEATING AND PURIFYING FEED WATER.

No. 314,559. Patented Mar. 31, 1885.

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(No Model.) 4 Sheets-Sheet 3.

WI BARAGWANATH.

HEATING AND PURIFYING FEED WATER.

No. 314,559. I Patented Mar. 31, 1885.

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(No Model.)

W. BARAGWANATH.

HEATING AND PURIFYING' FEED WATER.

Patent ed Mar. 31, 1885.

N. PETERS. FN'JXD-Uhugrzlpller. Washington, 0.6.

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WVILLIAM BARAGVVANATH, OF CHICAGO, ILLlhIOIS.

HEATlNG AND PURlFYlNG FEED WATER.

SPECIFICATION forming part of Letters Patent No.31a,559, dated March 31,1885.

Application filed October 19, 1883.

T0 (tZZ whom, it may concern:

Be it known that I, WILLIAM BARAGWA- NATH, residing at Chicago, in thecounty of Cook and State of Illinois, and a citizen of the UnitedStates, have invented certain new and useful Improvements in Apparatusfor Heating and Purifying Feed-Water and Condensing Steam, of which thefollowing is a full description, reference being had to the accompanyingdrawings, in which Figure l is an elevation of a single heater; Fig. 2,a cross-section on line 00 x of Fig. 1; Fig. 3, a vertical section; Fig.4, an elevation of the double apparatus; Fig. 5, averticalsection of theapparatus shown in Fig. 4.

The object of this invention is to provide an apparatus for heatingfeed-water by exhauststeam, and in constructing the said apparatus sothat it may be used as a condenser, or partly as both heater andcondenser, as may be desired for the intended situation or use; and itsnature consists in the several new combinations of parts, as hereinafterdescribed and claimed as new.

In the drawings, A indicates the outer casing or shell of thesteam-jacket; B, the outer casing of the feed-water cyli'nder orchamber; C C, steam-spaces; D, water space; E, upper, and F lower, swellor convex end plates or heads; G ,H, concave end plates of thewatercylinder; .1, diaphragm; J, water-space; K, scum-chamber pipe; L,scum-chamber; M, legs or ground-supports; a, steaurpipes in watercylinder or chamber; a, steaminlet pipe; I), exhaust-pipe; 0,,inlet-water pipe; (I, outflowwater pipes; e, outflow-pipe for chamber J;f, inflow-water pipe for chamber J; g, perf0- rated head or rose; h,siphon or overflow-pipe;

t", bolts or projections for holding the lower end of the water-cylinderin position; j, water-gage; k, hand-hold for chamber J; Z in, blow-oftpipes for the scum-chamber; a, hand valves; 0, stut'fing-boxes orpackingsw, capped projections or ports by whichaccess is ob tained tothe hand-plates or rose; q, hand plates for the water-cylinder; 1',holes or perforations around the steam-chamber C s, mudpipe formud-chamber; s, discharge-pipe for water of condensation.

The cylinders A B are usually made of boileriron, and they will vary insize or length according to the situation in which they are to be (Nomodel.)

placed or the amount of service required, and in connection with the endplates they are provided with suitable flanges for connecting thecylinders and end plates together, as shown. The end plates, E F, aremade conical, the lower one being placed so that when in position itwill be concave. It is provided at or or near its lowest point with thepipe sand valve n, for operation in blowing off any mud or sedimentwhich may be deposited at-the bottom of the chamber J. The tubes or endplates of the wateneylinder are slightly concave, as shown, the amountof concavity being about onesixteenth of an inch for a cylinder eighteeninches in diameter and four feet in length. and they are made in thisform to pro vide for the contraction and expansion of the steam-pipes a,and when made in this form they prevent the joints between the pipes atand these end plates from working so as to leak. The end plate, H, isset up, as shown in Fig. 3, to form the steam-space C, which is formedby inserting the diaphragm I at the end, as shown, the said diaphragmbeing convex, in order to cause the steam and water of condensationwhich enter to pass out at the openings '1". The openings or holes r aremade around this cylinder and of a sufficient num ber or size to permita free outflow of the steam into the annular chamber C. Thechamber J isformed by extending the outer or jacket cylinder below thewater-cylinder the desired distance. This chamber is provided with aninflow-pipe which is connected with a pump or otherproper source ofwater-supply through which water is forced and sprayed, or partlysprayed, by the rose g, against the under side of the diaphragm I, fromwhich it falls into the chamber J, which will stand filled with water tothe height of the dotted line in Fig. 3, the outflow-pipe 6 being curvedupward, and arranged so that it will not affect the standing of thewater in the chamber. When the waterpasses above this 1ine,the excesswill pass out of the siphon or overflow pipe h, which will startwhenever the water rises above this opening into the chamber J. Thissiphon overflowpipe is so arranged at its delivery end as not to furnisha free outflow of steam in case any slight pressure should be applied.XVater is passed into the cylinderB through. the pipe 0, and is forcedout at the upper end through the pipe d; and in order to use the waterfrom the chamber J, which is partly heated, and impurities allowed tosettle, I usually connect the pipe 6 with the pump, which forces thewater throughthe pipe into the chamber B, so as to obtain the benefit ofwhatever heating may take place in the chamber J while the mud, sand,&c., are settling.

WVhen the device is used solely for heating water, the amount of waterpassing in through the pipe f will be so regulated as not to have an injnrious effect as a condenser, it being understood that any and all ofthese pipes are to be supplied with regulating or cutoff valves at suchpoints as may be convenient for their proper manipulatiom The pipes K cd are may be omitted.

provided with suitable stuffing-boxes, to prevent leakage where theypass through the jacket-cylinder. The pipe K passes through the heads GE, and projects up into the scumchamber L, as shown, which projectionprevents any accumulation within the scum-chamher from fiowin g backinto the water-chamber. The scum-cham her is provided with two overfiowor blow-off pipes, Z m, the upper one. Z, being designed to carry offlight or frothy matters and the lower one, m, for carrying oft heavieror sedimentary matters. The cut-off or regulating valves for these pipesare shown at n. The hand-holes 75, q. and p are made in the usualmanner. The ground-supports M may be in the form of legs, as shown, orthey may be of any ordinary mason-work, as may be most convenient fortheir location.

The device may be provided with a safetyvalve arranged to preventbursting or collapsing, as shown in Figs. 4: and 5. The pipe K may alsobe inserted or bent so as to locate the scum-chamber at the side, inwhich case the pipes Z and at will not require all of the bends shown,and when the device is used simply as a condenser these scum-chambersThe turning down of the scum-chambers or their omission when used forcondensers produces a height which in somelocations is a materialconsideration; and

'in order to further reduce the height when used double, the upper setof cylinders may be turned so as to be horizontal or nearly horizontal.The upper cylinder does not have or require the chamber J ,nor its pipesf h, the water of condensation passing out of the pipe 8, to the pump,orto such place as it may be desirable to have it discharged. Both of thepipes 0 may also be connected with the pump, or the upper one with thelower pipe, d. Otherwise the construction of the upper and lowercylinders and their jackets and connections are substantially the same,except for the inlet and discharge ports or pipes for the I steam,whichin the upper one are arranged in reference to each other as shown; butthey may be arranged differently, as may be found mostconvenient for theplace where they are designed to be used, it being understood thathardly any two of these machines are exactly alike in size and inpipeconnections, as the places which they are to occupy vary so greatly.

In operation steam is admitted to the port or pipe a, from which itpasses through the pipes a into the steam-space C, from which it passesthrough the holes r into the annular steam-space O, and, in the singledevice, also into the chamber J and out at the port or pipe 6. The waterof condensation from the pipes a in the single device passes into thechamber 0 and down into the chamber J, and when used as a feed-heaterthe water is to be kept in the cylinder B a sufficient length of time toobtain the best results, it being understood that the longer it remainsthe hotter it will become until the highest degree of heat obtainable isreached, while, when used for a condenser the water will be kept incirculation, so as to keep it full of cold water, and when used as acondenser the pipe f, with its perforated head or rose g, may also bekept in operation, and by the use of two of these devices, as shown inFigs. 4 and 5, a practically complete condenser can be obtained.

I have shown and described the plates G H as being both of them concave,which is their best form; but it is evident either one may be made planeand the other concave with good results.

When two cylinders are combined, as shown in Figs. 4 and 5, the upperonewill be used as a heater, and the steam passing in at the pipe orport a will pass into the chamber 0, and through the pipes a into theannular steamspace 0 and out of the pipe or port I). This arrangementleaves the upper device to act as a heater, and any water ofcondensation which may be found therein can be drawn off at the pipe 8,which may also be used as a separate blow-oft. The steam which passesout at the port or pipe b passes into the port or pipe at of the secondcylinder, which, in this case, operates only as a condenser, where it isfinally and fully condensed as it passes through the pipes a into thechamber 0 through the holes 7' into the chambers O and J. By maintaininga circulation of water through the cylinder B by the pipes 0 d, andcausing the water delivered' into the chamber J to be formed into sprayor fine divisions by the rose 9 and the diaphragm, or either, the steamwill be condensed so as to fall. into the chamber J, which will befilled to the proper height with distilled water and the water passingin through the pipe f. Any sedimentary matter which may pass through thepipe f can be drawn off through the pipes of the plate F. When the lowercylinder is used in this form or as a condenser, merely, thescum-chamber L, with its connectingpipes K, Z, and m, may be omitted.

The use of the lower cylinder as a condenser will, to a certain extent,warm the contained Water, which can be taken by the pump from the pipe6, forced into the pipe 0 of the IlO lower cylinder of the condenser,and taken from the pipe d of the condenser and forced into the pipe 0 ofthe first or upper cylinder, if desired, instead of giving each aseparate water-supply.

It will be readily understood that the operation of the lower cylinder,when used as a heater, may be reversed, and that when two are used theymay be reversed with slight modifications, which will not change theircharacter.

I have described the apparatus as cylindrical, which is its best form;but it is evident that it may be made angular or square withoutaffecting any of its operations.

WVhat I claim as new, and desire to secure by Letters Patent, is

1. The combination of the lower waterchamber head, H, and extendedcylinder B with the diaphragm I, for forming the steanr chamber 0,substantially as specified.

2. The combination, within the chamber J, of the pipe f, having theperforated head or rose 9, and the diaphragm or plate I, substantiallyas described.

3. The combination of the pipes e, f, and h with the extended jacket-cylinder and head F of the water-purifying chamber J,substantially as set forth.

4. The siphon overflow-pipe h, in combination with the water-chamber J,substantially as and for the purpose specified.

5. The combination of the jacket A, cylinder B, suspended within jacketA to form space 0, the heads to cylinder B, and pipes a connecting thesame, the steam-space O, beneath pipes a, the pipe a, opening intocylinder B above pipes a, and pipeb, leading from space 0, the pipes cd, communicating with cylinder B, the pipes e andf, extending from lowerpart of jacket A, and the pipe f provided with rose 9, substantially asdescribed.

6. The jacket A, provided with concave heads E F and pipes at, b, e, andh, in combination with the cylinder B, suspended Within said jacket toform the spaces 0 and J, and formed with the steam-space O,communicating with space 0, and provided with pipes c d, the pipes atand K, steam-chamber L, and pipes Z m, substantially as described.

7. The combination of the pipe fwith the extended cylinder A and thediaphragm I, substantially as and for the purpose described.

8. The combination of the two shells, each having a cylinder suspendedwithin the same to form a steam-space between it and the shell, a seriesof pipes in each cylinder, connected at opposite ends to end platescurved on the arc of a circle, a steam-space below each lower end plate,a scunrchamber above each shell, provided with escape-pipes andcommunicating wit-h the suspended cylinder through a pipe, a watersupply and exit pipe to the sus pended cylinder in one of the shells, anoverflow-pipe and outlet-pipe to the space below said cylinder, and awater-supply pipe thereto provided with a rose at its end, substantiallyas described.

WILLIAM BARAGWVANATH.

W'itnesses:

ALBERT I-I. ADAMS, 0. W. BOND.

